2688193064 has 16 divisors (see below), whose sum is σ = 5042672820. Its totient is φ = 1343480320.

The previous prime is 2688193061. The next prime is 2688193087. The reversal of 2688193064 is 4603918862.

It can be written as a sum of positive squares in 2 ways, for example, as 2686348900 + 1844164 = 51830^2 + 1358^2 .

It is not an unprimeable number, because it can be changed into a prime (2688193061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58217 + ... + 93624.

Almost surely, 2^2688193064 is an apocalyptic number.

It is an amenable number.

2688193064 is a deficient number, since it is larger than the sum of its proper divisors (2354479756).

2688193064 is a wasteful number, since it uses less digits than its factorization.

2688193064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154060 (or 154056 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 2688193064 is about 51847.7874552039. The cubic root of 2688193064 is about 1390.4439456303.

The spelling of 2688193064 in words is "two billion, six hundred eighty-eight million, one hundred ninety-three thousand, sixty-four".